I agree, previous GMTK game jam themes such as "Joined Together" (towers joined together to create new towers) and "Genre Without Mecahinc" (tower defense without shooting) shine more than "Roll of The Dice" here. But I kinda liked the idea of getting random towers for you to figure out new strategies, and sometimes while playtesting the game I had a feeling of "Oh, how am I gonna survive this wave with what I've got? Oh, I've got an idea!". It can make you think more creatively I believe, like in Mini-Motorways, where it spawns new buildings and homes in random places. Forcing you to think in a creative way about how to connect them without breaking the highways you've built so far. It also makes you think ahead of time at the start of the level. Maybe I need to experiment with the game more to figure out how to give those experiences, without making it seem unfair.